Depending on setting and play group some information of a character should remain hidden from other players, even if every character with their biography are shown to all players.
I suggest to add a third text box on the character sheet tab of the side panel, between the current "Bio & Info" and "GM Notes" boxes, called "Private Info (Visible to player and GM)".
This box would be shown to the owning player and the GM, but not to other players. It should also be editable by the owning player as is the Bio.
A generalization of this idea would be to get rid of the fixed number of text boxes on the character sheet. Instead, provide an "+Add Text Box" button to have the GM add arbitrary text boxes. Each text box individually would receive an editable title, text content, and view and edit permissions.
(The same could be done for arbitrary file attachments, aka PDFs, DOCXs, ... ;-)
This suggestion is loosely related to the "Character Sheets" discussion at <a href="http://community.roll20.net/discussion/160/character-sheets/p1/" rel="nofollow">http://community.roll20.net/discussion/160/character-sheets/p1/</a>
